论文标题
使用建立和等待任务拦截星际对象的最佳位置
Optimum Location to Intercept Interstellar Objects with Build-and-wait Missions
论文作者
论文摘要
到目前为止，仅发现了两个星际对象（ISO）：1i/'oumuamua和2i/borisov。尽管观察到了有限的观察，但它们对研究界表示了高度的科学兴趣。为了进一步分析这些对象，需要原位数据。但是，在ISO检测后开始任务设计和航天器制造将显着降低任务成功概率。因此，“建立和等待”是一个吸引人的任务概念。为了准备ISO的即将到来的任务，需要对概率分析有更深入的了解，以将这些对象定位在太阳系中。因此，通过使用runge-kutta rkf4（5）数值方法进行计算分析，研究了拦截这些对象的最佳位置。该方法已用于确定ISOS轨迹拦截黄道的可能性。结果表明，距离太阳的距离约为1个。因此，地球轨道附近是发送或放置ISO截距的航天器的最佳位置。此外，这些结果通过ISO影响增加了Panspermia理论的有效性。作者估计，ISO-EARTH撞击的年概率为10 $^{ - 7} $。
Until now, only two Interstellar Objects (ISOs) have been discovered: 1I/'Oumuamua and 2I/Borisov. Despite a limited amount of observations, they present high scientific interest for the research community. In order to further analyze these objects, in-situ data is required. However, beginning the mission design and spacecraft manufacture after ISO detection would significantly lower mission success probability. Consequently,"build-and-wait" is an appealing mission concept. To prepare the upcoming missions to ISOs it is required to have a deeper knowledge on the probability analysis to locate these objects within the Solar System. Therefore, the optimum location to intercept these objects has been studied by performing a computational analysis using the Runge-Kutta RKF4(5) numerical method. This method has been used to determine the likelihood of ISOs trajectories intercepting the ecliptic. The results show a peak at a distance of ~1 AU from the Sun. Therefore, the vicinity of the Earth's orbit is the best position to send or place a spacecraft for ISO interception. In addition, these results add validity to the theory of panspermia via ISO impact. The author has estimated an annual probability of ISO-Earth impact of 10$^{-7}$.
